Antislipping device.



M. J. PRAMBAGH &. A. R. OORRINGTON.

- ANTISLIPPING DEVICE. APPLIUATION. FILED NOV. 17I 1911 RENEWED DBO. 17, 1913.

1,096, 1 O1 P en ed May 12, 1914.

WITNESSES: [IVVE/VTORS Aliamejs UNITED STATES PATENT came.

MATHEW J. FRAMBACH AND ALDON R. CORR-ING'ION, OF HARTLEY, IOWA, ASSIGNORS F ONE-SIXTH TO THOMAS V. GARVIN, OF DES MOINES, IOWA.

ANTISLIPPING- DEVICE.

Specification of Letters Patent.

Patented May 12, 1914..

Application filed November 17, 1911, Serial No. 660,800. Renewed December 17, 1913. Serial No. 807,330.

T 0 all whom it may concern:

Be it known that we, MATHEW J. FRAM- EACH and ALnoN R, CORRINGTON, citizens of the United States, residing at- I-lartley, 1n

3 the county of OBrien and State of Iowa,

have invented certain new and useful Improvements in Ant-islipping Devices; and we do hereby declare the following to be a full, clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to make and use the same. 5 I

Our invent-ion relates to new and useful improvements in anti-slipping devices and more particularly to anti-slipping devices adapted to be used in connection with pneus -vYVith the usual form of anti-slipping de-. "'vice employing chains, arranged transversely -of the tread, thesame become loose and very matic, cushion or other forms of vehicle tires.

The object of our invention is to provide an anti-slipping device, which will at'all times be held in close engagement with the tire.

Other objects and advantages of our invention will be hereinafter made clearly ap-' parent in the specification and pointed out in the claim.

,In the accompanying drawings we have shown the preferred form which our invention may take.

In said drawings, Figure l is a side elevation showing portions of a vehicle wheel and our improved form of anti-slipping device and the manner of securing the same in ing parts throughout the several views, 5 is a vehicle wheel, which may beofany desired construction; ...and'provided with a the 6. The ,tire 6.may.be a pneumatic or cushion tire and formed of rubber or other pre ferried-suitable material.

quicklyloosen the portion of the tread thereunder, due to the rolling of the chain over the tread when the vehicle is in use. Our anti-slipping device consists of a plurality of chains 7, which are arranged transgage the links 9.

versely of the tire, the ends of the chains being detachably connected to the hooked ends 8 of connecting members 9. The connecting members 9, as clearly shown in Fig.

3, are preferably formed of one piece of steel wire, which is bent in the manner 0 shown in Fig. 8. As clearly shown in said figure, the ends of the wire are arranged inparallel directions a-nd the extreme ends thereof are bent back adjacent the body of the wireso as to form the hooked ends 8.

The central portion of the wire is bent so as to form the substantially O-shaped link portion 9, the plane of which is at right angles to the hooks 8. Adjoining ends of adjacent links 9 are connected by means of links 10.

In Fig. 2 we have shown the preferred form of link 10, which consists of a section of steel wire having its ends looped to enthe links 9 and 10 are connected together to extend substantially around theperiphery of the tire, with which the same is to be used: In order to secure the same upon the tire,

we preferably secure a chain 11 to the link-9 so at one end of the series and a spring locking member 12 to the other end of said series. The spring locking member 12 is preferably formed from a single length of wire, which is first doubled'and the looped end secured around the end of the link 9, as clearly shown 1n Fig. 2. The wire is then bent into the form shown in Fig. 2 and the ends of each wire turned back upon itself to fornl a looped end 13.

When it is desired to secure the antislipping device in place the looped ends 13 are passed through one of the links of the chain 11 and the spring member 12 turned so as to occupy the position shown'in Fig. 2,

with the looped ends 13 of the member 12 extending upon opposite sides of one portion of the link 9, to which it is secured, as clearly shown in Fig. 1. A pin 14 is'then passed through the looped ends to hold the same securely in place.

In practice the locking member 12 is extended through the link of the chain 11 which, when the'locking member is secured in position, will give -thenecessary tension to our anti-slipping device. By forming the linksQ in the manner shown in the drawing, the same may be placed under considerable A sufiicient number of 75 tension so that the anti-slipping device will he maintained tight upon the tread of the wheel at all times.

The point of greatest wear in anti-slipping devices of this character is at the connecting point between the transverse chains 7 and the connecting devices for the ends thereof.

I In our construction it will be seen that the connecting links 9 are formed with double hooked ends 8 so as to strengthen said links where most needed.

From the foregoing description it will be seen that we have provided an anti-slipping device which will at all times be maintained tightly upon the tread of the wheel with which the same may be used. It will also be seen that our device is of very cheap construction and that any part thereof which may become worn may be very readily replaced. It will also be seen that by forming the links 9. in the manner shown, that the side walls of the tire will be sufficiently armored to protect the same from wear when the vehicle wheel happens to go into ruts or is run over a very rough roadway.

4 short minor links connecting the contiguous ends .of-the major links in proper relation to'each other, and tread chains having loose detachable" end connection with the terminal hooks and holding saidmajorlinks yield: ingly closed. a i

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

MATHEW J. FRAMBAOH. ALDON a. CORRINGTON.

Witnesses:

W. F. SCHILDT, H. P. MoUsnLf Copies of this patent may be obtained for five cents each,-by addressing the itommissioner of Patents,

Washington, D. C. 

